Revert of Migrate FastCloneShallowObjectStub to TurboFan

src/full-codegen/s390/full-codegen-s390.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_S390
 
 #include "src/ast/scopes.h"
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
@@ skipping 1330 matching lines @@
   __ LoadSmiLiteral(r4, Smi::FromInt(expr->literal_index()));
   __ mov(r3, Operand(constant_properties));
   int flags = expr->ComputeFlags();
   __ LoadSmiLiteral(r2, Smi::FromInt(flags));
   if (MustCreateObjectLiteralWithRuntime(expr)) {
     __ Push(r5, r4, r3, r2);
     __ CallRuntime(Runtime::kCreateObjectLiteral);
   } else {
     FastCloneShallowObjectStub stub(isolate(), expr->properties_count());
     __ CallStub(&stub);
-    __ LoadP(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
   }
   PrepareForBailoutForId(expr->CreateLiteralId(), TOS_REG);
 
   // If result_saved is true the result is on top of the stack.  If
   // result_saved is false the result is in r2.
   bool result_saved = false;
 
   AccessorTable accessor_table(zone());
   int property_index = 0;
   for (; property_index < expr->properties()->length(); property_index++) {
@@ skipping 2509 matching lines @@
   DCHECK(kOSRBranchInstruction == br_instr);
 
   DCHECK(interrupt_address ==
          isolate->builtins()->OnStackReplacement()->entry());
   return ON_STACK_REPLACEMENT;
 }
 
 }  // namespace internal
 }  // namespace v8
 #endif  // V8_TARGET_ARCH_S390